SpeedFactory Straight Transition Silicone Coupler 3.5-4 Inch 51220-SDA-305 Engineered through extensive testing on

Engineered through extensive testing on Japanese circuits and roads

allowing for a stable brake feel even during continuous laps

Pro 3+ Camshafts are designed to optimize mid-range and top-end horsepower and torque

Fits Evo VIII 3 plug versions

The various expressions exhibited include a clean-cut look from head on

SpeedFactory Straight Transition Silicone Coupler 3.5-4 Inch 51220-SDA-305 Engineered through extensive testing onSpeedFactory is proud to offer our own line of silicone couplers. Our 4 ply Polyester reinforced silicone couplers have been made to survive serious boost applications. Manufactured to the SAE J20 specification and utilizing 4 plies of polyester, we can achieve a continuous temperature range up to +376 degrees F for direct turbo installations and have burst pressures up to over 200PSI. All of our hose products are made with a super slick outer cover